Year	% of primary school age children
1970	53.12263
1971	49.56221
1972	51.34131
1973	54.88695
1974	59.53586
1975	67.11246
1976	71.9274
1977	76.23953
1978	76.78652
1979	78.23757
1980	82.65349
1981	87.01356
1983	91.66206
1984	92.07417
1985	93.95577
1986	93.86721
1987	94.3179
1988	94.75767
1989	94.91828
1990	94.99855
1991	97.27605
1992	96.22717
1993	95.38295
1994	95.18357
1995	85.28204
1996	85.60003
1998	88.25432
1999	87.06785
2000	88.00626
2001	89.33542
2002	89.21249
2003	89.34899
2004	88.67804
2005	89.3522
2006	89.87073
2007	89.53966
2008	87.16181
2009	86.38464
2012	89.27674